Home / 142,228.35-196,281.09-81,799.02

Finding the Fourth Proportional to 142,228.35, 196,281.09 and 81,799.02

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Solution

The fourth proportional to 142,228.35, 196,281.09 and 81,799.02 is: 112,886.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,228.35 : 196,281.09 = 81,799.02 : x
  2. Step 2: Convert to fraction form
    142,228.35/196,281.09 = 81,799.02/x
  3. Step 3: Cross multiply
    142,228.35x = 196,281.09 × 81,799.02
  4. Step 4: Simplify right side
    142,228.35x = 16,055,600,806.53
  5. Step 5: Solve for x
    x = 16,055,600,806.53/142,228.35
  6. Step 6: Final answer
    x = 112,886.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.